Publications

For preprints see the ArXiv

2024

  1. Editor, Michael E Tobar, 9th Symposium on Frequency Standards and Metrology 2023, 16–20 October 2023, Kingscliff, Australia, Journal of Physics: Conference Series, Vol. 2889, 2024.

  2. A Quiskamp, BT McAllister, P Altin, EN Ivanov, M Goryachev, ME Tobar, “Exclusion of ALP Cogenesis Dark Matter in a Mass Window Above 100 μeV,” Phys. Rev. Lett. vol. 132, 03160, 2024.

  3. BT McAllister, AP Quiskamp, M. Tobar, “Tunable Rectangular Resonant Cavities for Axion Haloscopes,” Phys. Rev. D 109, 015013, 2024.

  4. S Chakrabarty, JR Gleason, Y Han, AT Hipp, M Solano, P Sikivie, NS Sullivan, DB Tanner, M Goryachev, E Hartman, BT McAllister, A Quiskamp, C Thomson, ME Tobar, MH Awida, AS Chou, M Hollister, S Knirck, A Sonnenschein, W Wester, T Braine, M Guzzetti, C Hanretty, G Leum, LJ Rosenberg, G Rybka, J Sinnis, J Clarke, I Siddiqi, R Khatiwada, G Carosi, N Du, N Robertson, LD Duffy, C Boutan, NS Oblath, MS Taubman, J Yang, E Lentz, EJ Daw, MG Perry, C Bartram, JH Buckley, C Gaikwad, J Hoffman, KW Murch, T Nitta, “Low Frequency (100-600 MHz) Searches with Axion Cavity Haloscopes,” Phys. Rev. D, vol. 109, 042004, 2024.

  5. RY Chiao, NA Inan, M Scheibner, J Sharping, DA Singleton, ME Tobar, “Gravitational Aharonov-Bohm effect,” Phys. Rev D, vol. 109, 064073, 2024.

  6. C Bartram, T Braine, R Cervantes, N Crisosto, N Du, C Goodman, M Guzzetti, C Hanretty, S Lee, G Leum, LJ Rosenberg, G Rybka, J Sinnis, D Zhang, MH Awida, D Bowring, AS Chou, M Hollister, S Knirck, A Sonnenschein, W Wester, R Khatiwada, J Brodsky, G Carosi, LD Duffy, M Goryachev, B McAllister, A Quiskamp, C Thomson, ME Tobar, C Boutan, M Jones, BH LaRoque, E Lentz, NE Man, NS Oblath, MS Taubman, J Yang, J Clarke, I Siddiqi, A Agrawal, AV Dixit, JR Gleason, Y Han, AT Hipp, S Jois, P Sikivie, NS Sullivan, DB Tanner, EJ Daw, MG Perry, JH Buckley, C Gaikwad, J Hoffman, KW Murch, J Russell, “Non-Virialized Axion Search Sensitive to Doppler Effects in the Milky Way Halo,” Phys. Rev. D, vol. 109, 083014, 2024.

  7. BT McAllister, ZC Zhao, JF Bourhill, M Goryachev, D Creedon, BC. Johnson, ME Tobar, “Conductivity Freeze-Out in Isotopically Pure Si-28 at milli-Kelvin Temperatures,” Phys. Rev. Applied, vol. 21, 064002, 2024.

  8. MT Hatzon, EN Ivanov, JF Bourhill, M Goryachev, ME Tobar, Microwave-cavity mode optimization by background antiresonance tuning, Phys. Rev. Applied, vol. 22, 014081, 2024.

  9. Y Guo, ZC Zhao, J Zheng, F-J Ma, AWY Ho-Baillie, DR McKenzie, “Quantum interference at the recombination junction of perovskite-Si tandem solar cells improves efficiency” Phys. Rev. Lett. vol. 133, 076201, 2024.

  10. CG Baker, WP Bowen, P Cox , MJ Dolan, M Goryachev, G Harris, “Optomechanical dark matter instrument for direct detection,” Phys. Rev. D, vol. 110, 043005, 2024.

  11. ME Tobar, MT Hatzon, GR Flower, M Goryachev, Scalar gravitational Aharonov–Bohm effect: Generalization of the gravitational redshift, Appl. Phys. Lett. 125, 094002, 2024.

  12. E Hartman, ME Tobar, BT McAllister, J Bourhill, M Goryachev, “Precision multi-mode microwave spectroscopy of paramagnetic and rare-earth ion spin defects in single crystal calcium tungstate,” Appl. Phys. Lett., vol. 125, no. 16, 164001, 2024.

  13. S Parashar, WM Campbell, J Bourhill, EN Ivanov, M Goryachev, ME Tobar, “Upconversion of Phonon Modes into Microwave Photons in a Lithium Niobate Bulk Acoustic Wave Resonator Coupled to a Microwave Cavity,” APL Photonics, vol. 9, 111304, 2024.

  14. RY Chiao, NA Inan, DA Singleton, ME Tobar, Time-dependent Aharonov-Bohm effect for electromagnetic and gravitational scalar potentials, J. Phys.: Conf. Ser. vol. 2889, 012062, 2024.

  15. J Bourhill, G Cochet, J Haumant, V Vlaminck, A Manchec, ME Tobar, V Castel, "Metalized 3-D Printed Plastic Resonator Demonstrating Superconductivity Below 4 K," in IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 14, no. 11, pp. 2140-2143, Nov. 2024.

2023

  1. J Zheng, W Duan, Y Guo, ZC Zhao, H Yi, F-J Ma, L Granados Caro, C Yi, J Bing, S Tang, J Qu, KC Fong, X Cui, Y Zhu, L Yang, A Lambertz, Md A Mahmud, H Chen, C Liao, G Wang, M Jankovec, C Xu, A Uddin, JM Cairney, S Bremner, S Huang, K Ding, DR McKenzie and AWY Ho-Baillie, “Efficient monolithic perovskite–Si tandem solar cells enabled by an ultra-thin indium tin oxide interlayer,“ Energy Environ. Sci., 16, pp. 1223-1233, Jan. 2023.

  2. S Galliou, J Bon, P Abbé, R Vicarini, ME Tobar, MGoryachev, “Probing the acoustic losses of graphene with a low-loss quartz bulk-acoustic-wave resonator at cryogenic temperatures,” Materials Science and Engineering B, 287, 116102, 2023.

  3. W Campbell, S Galliou, ME Tobar, M Goryachev, "Electro-mechanical tuning of high-Q bulk acoustic phonon modes at cryogenic temperatures", Appl. Phys. Lett. 122, 032202, 2023.

  4. C Bartram, T Braine, R Cervantes, N Crisosto, N Du, G Leum, P Mohapatra, T Nitta, LJ Rosenberg, G Rybka, J Yang, J Clarke, I Siddiqi, A Agrawal, AV Dixit, MH Awida, AS Chou, M Hollister, S Knirck, A Sonnenschein, W Wester, JR Gleason, AT Hipp, S Jois, P Sikivie, NS Sullivan, DB Tanner, E Lentz, R Khatiwada, G Carosi, C Cisneros, N Robertson, N Woollett, LD Duffy, C Boutan, M Jones, BH LaRoque, NS Oblath, MS Taubman, EJ Daw, MG Perry, JH Buckley, C Gaikwad, J Hoffman, K Murch, M Goryachev, BT McAllister, A Quiskamp, C Thomson, ME Tobar, V Bolkhovsky, G Calusine, W Oliver, K Serniak, “Dark matter axion search using a Josephson Traveling wave parametric amplifier, Rev. Sci. Instrum., vol. 94, 044703, 2023.

  5. RY Chiao, H Hart, NA Inan, M Scheibner, J Sharping, DA Singleton, ME Tobar, “Energy level shift of quantum systems via the electric Aharonov-Bohm effect,” Phys. Rev. A, vol. 107, 042209, 2023.

  6. ME Tobar, CA Thomson, BT McAllister, MGoryachev, A Sokolov, A Ringwald, “Sensitivity of Resonant Axion Haloscopes to Quantum Electromagnetodynamics”, Annalen der Physik, 2200594, 2023.

  7. CA Thomson, M Goryachev, BT McAllister, EN Ivanov, P Altin, ME Tobar, “Searching for low-mass axions using resonant upconversion,” Phys. Rev. D, vol. 107, 112003, 2023.

  8. BT McAllister, A Quiskamp, C O'Hare, P Altin, EN Ivanov, M Goryachev, ME Tobar, "Limits on Dark Photons, Scalars, and Axion-Electromagnetodynamics with The ORGAN Experiment", Annalen der Physik, 2200622, 2023.

  9. EN Ivanov and ME Tobar, "Power-to-Frequency Conversion in Cryogenic Sapphire Resonators," IEEE Microwave and Wireless Technology Letters, vol. 33, no. 7, pp. 1090-1093, 2023.

  10. W Campbell, M Goryachev, ME Tobar, "The Multi-mode Acoustic Gravitational Wave Experiment: MAGE", Sci Rep 13, 10638, 2023.

  11. ME Tobar, AV Sokolov, A Ringwald, M Goryachev, “Searching for GUT-scale QCD axions and monopoles with a high-voltage capacitor,” Phys. Rev. D, vol. 108, 035024, 2023.

  12. T Nitta, T Braine, N Du, M Guzzetti, C Hanretty, G Leum, LJ Rosenberg, G Rybka, J Sinnis, J Clarke, I Siddiqi, MH Awida, AS Chou, M Hollister, S Knirck, A Sonnenschein, W Wester, JR Gleason, AT Hipp, P Sikivie, NS Sullivan, DB Tanner, R Khatiwada, G Carosi, N Robertson, LD Duffy, C Boutan, E Lentz, NS Oblath, MS Taubman, J Yang, EJ Daw, MG Perry, C Bartram, JH Buckley, C Gaikwad, J. Hoffman, KW Murch, M Goryachev, E Hartman, BT McAllister, A Quiskamp, C Thomson, ME Tobar, JA Dror, H Murayama, NL Rodd. “Search for a dark-matter-induced cosmic axion background with ADMX,” Phys. Rev. Lett. vol. 131, 101002, 2023.

  13. JF Bourhill, ECI Paterson, M Goryachev, ME Tobar, “Searching for Ultra-Light Axions with Twisted Cavity Resonators of Anyon Rotational Symmetry with Bulk Modes of Non-Zero Helicity,” Phys. Rev. D., Phys. Rev. D, vol. 108, 052014, 2023.

  14. WM Campbell, ME Tobar, S Galliou, M Goryachev, “Improved Constraints on the Minimum Length with a Macroscopic Low Loss Phonon Cavity,” Phys. Rev D, vol. 108, 102006, 2023.

  15. EN Ivanov, ME Tobar, "Frequency Stable Microwave Sapphire Oscillators," IEEE Microwave and Wireless Technology Letters, in IEEE Microwave and Wireless Technology Letters, vol. 33, no. 12, pp. 1642-1645, Dec. 2023.

  16. G Rybka, LJ Rosenberg, G Carosi, C Boutan, RT Co, E Daw, Ken'ichi Saikawa, A Zhitnitsky, C O'Hare, M Baryakhtar, C Braggio, C Bartram, CP Salemi, S Lee, C Lee, D Budker, A Sonnenschein, D Marsh, ME Tobar, J Vogel, A Spector, AA Geraci, A Dixit, YK Semertzidis, MD Bird, KM Backes, “Axions Beyond Gen 2,” Int. J. Mod. Phys. A, vol. 38, no. 33 & 34, 2330012, 2023.

2022

  1. ZC Zhao, M Goryachev, J Krupka and ME Tobar, "Precision Multi-Mode Dielectric Characterization of a Crystalline Perovskite Enables Determination of the Temperature-Dependent Phase Transitions", IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 69, no. 1, pp. 423-429, 2022.

  2. ME Tobar, BT McAllister, M Goryachev, "Poynting vector controversy in axion modified electrodynamics," Phys. Rev. D, vol. 105, 045009, 2022. Erratum Phys. Rev. D vol. 106, 109903 (2022)

  3. CA Thomson, ME Tobar, M Goryachev, “Generation of Bimodal Solitons in a Sapphire Whispering Gallery Mode Maser at Millikelvin Temperatures,” Phys. Rev. A, vol. 105, 033511, 2022.

  4. A Quiskamp, BT McAllister, P Altin, EN Ivanov, M Goryachev, ME Tobar, “Direct search for dark matter axions excluding ALP cogenesis in the 63- to 67-μeV range with the ORGAN experiment,” Science Advances, vol. 8., no. 7, eabq3765, 2022.

  5. ME Tobar, RY Chiao, M Goryachev, "Active Electric Dipole Energy Sources: Transduction via Electric Scalar and Vector Potentials," Sensors, vol. 22, no. 18: 7029, 2022.

  6. VV Flambaum, BT McAllister, IB Samsonov, ME Tobar, “Searching for scalar field dark matter using cavity resonators and capacitors,” Phys. Rev. D, vol. 105, 055037, 2022.

  7. ME Tobar, CA Thomson, WM Campbell, A Quiskamp, JF Bourhill, BT McAllister, EN Ivanov, M Goryachev, "Comparing Instrument Spectral Sensitivity of Dissimilar Electromagnetic Haloscopes to Axion Dark Matter and High Frequency Gravitational Waves," Symmetry, vol. 14, no. 10, 2165, 2022.

2021

  1. ME Tobar, BT McAllister, M Goryachev, “Electrodynamics of Free- and Bound-Charge Electricity Generators Using Impressed Sources”, Phys. Rev. Applied vol. 15, 014007, 2021.

  2. J Krupka, A Pacewicz, B Salski, P Kopyt, J Bourhill, M Goryachev, ME Tobar, “Resonances in large ferrimagnetic YIG samples - electrodynamic analysis, Journal of Mag. and Magnetic Materials, vol. 521, Part 1, 167536, 1 March 2021.

  3. BT McAllister, J Bourhill, WHJ Ma, T Sercombe, M Goryachev, ME Tobar, “Characterisation of Cryogenic Material Properties of 3D-Printed Superconducting Niobium using a 3D Lumped Element Microwave Cavity,” IEEE Trans. on Instrum. & Meas, vol. 70,  pp. 1-7, Art no. 6002007, 2021.

  4. BP Dix-Matthews, SW Schediwy, DR Gozzard, E Savalle, FX Esnault, T Lévèque, C Gravestock, D D'Mello, S Karpathakis, ME Tobar, P Wolf, “Point-to-Point Stabilized Optical Frequency Transfer with Active Optics,” Nature Communications, vol. 12, 515, 2021. https://doi.org/10.1038/s41467-020-20591-5

  5. C Bartram , T Braine, R Cervantes, N. Crisosto, N. Du, G. Leum, LJ Rosenberg, G Rybka, J Yang, D Bowring, AS Chou, R Khatiwada, A Sonnenschein, W Wester, G Carosi, N Woollett, LD Duffy, M Goryachev, B McAllister, ME Tobar, C Boutan, M Jones, BH LaRoque, NS Oblath, MS Taubman, J Clarke, A Dove, A Eddins, SR O’Kelley, S Nawaz, I Siddiqi, N Stevenson, A Agrawal, AV Dixit, JR Gleason, S Jois, P Sikivie, JA Solomon, NS Sullivan, DB Tanner, E Lentz, EJ Daw, MG Perry, JH Buckley, PM Harrington, EA Henriksen, KW Murch, “Axion dark matter experiment: Run 1B analysis details,” Phys. Rev. D, vol. 103, 032002, 2021.

  6. MA Page, M Goryachev, H Miao, Y Chen, Y Ma, D Mason, M Rossi, CD Blair, L Ju, DG Blair, A Schliesser, ME Tobar, C Zhao, “Gravitational wave detectors with broadband high frequency sensitivity”, Communications Physics, vol. 4, 27, 2021.

  7. E Savalle, A Hees, F Frank, E Cantin, P-E Pottie, BM Roberts, L Cros, BT McAllister, P Wolf, “Searching for Dark Matter with an Optical Cavity and an Unequal-Delay Interferometer,” Phys. Rev. Lett., vol. 126, 051301, 2021.

  8. WM Campbell, BT McAllister, M Goryachev, EN Ivanov, ME Tobar, “Searching for scalar dark matter via coupling to fundamental constants with photonic, atomic, and mechanical oscillators,” Phys. Rev. Lett., vol. 126, 071301, 2021.

  9. CA Thomson, BT McAllister, M Goryachev, EN Ivanov, ME Tobar, “Upconversion Loop Oscillator Axion Detection Experiment: A Precision Frequency Interferometric Axion Dark Matter Search with a Cylindrical Microwave Cavity,” Phys. Rev. Lett., vol. 126, 081803, 2021.

  10. EN Ivanov and ME Tobar, "Noise Suppression with Cryogenic Resonators," IEEE Microwave and Wireless Components Letters, vol. 31, no. 4, April 2021.

  11. Y Liu, J Mummery, J Zhou, MA Sillanpää, “Gravitational Forces Between Nonclassical Mechanical Oscillators,” Phys. Rev. Applied, vol. 15, 034004, 2021.

  12. AV Veryaskin, J Bourhill, EN Ivanov, ME Tobar, “Intrinsic Gravity Gradiometer and Gravity Gradiometry”, US Patent 11,002,878 B2, 11 May 2021.

  13. M Goryachev, WM Campbell, IS Heng, S Galliou, EN Ivanov and ME Tobar, “Rare Events Detected with A Bulk Acoustic Wave High Frequency Gravitational Wave Antenna”, Phys. Rev. Lettl, vol. 127, 071102, 12 Aug. 2021

  14. N Aggarwal, OD Aguiar, A Bauswein, G Cella, S Clesse, AM Cruise, V Domcke, DG Figueroa, A Geraci, M Goryachev, H Grote, M Hindmarsh, F Muia, N Mukund, D Ottaway, M Peloso, F Quevedo1, A Ricciardone, J Steinlechner, S Steinlechner, S Sun, ME Tobar, F Torrenti, C Unal, G White, “Challenges and opportunities of gravitational-wave searches at MHz to GHz frequencies”, Living Reviews in Relativity, 24, 4, 2021.

  15. C Bartram, T Braine, E Burns, R Cervantes, N Crisosto, N Du, H Korandla, G Leum, P Mohapatra, T Nitta, LJ Rosenberg, G Rybka, J Yang, J Clarke, I Siddiqi, A Agrawal, AV Dixit, MH Awida, AS Chou, M Hollister, S Knirck, A Sonnenschein, W Wester, JR Gleason, AT Hipp, S Jois, P Sikivie, NS Sullivan, DB Tanner, E Lentz, R Khatiwada, G Carosi, N Robertson, N Woollett, LD Duffy, C Boutan, M Jones, BH LaRoque, NS Oblath, MS Taubman, EJ Daw, MG Perry, JH Buckley, C Gaikwad, J Hoffman, KW Murch, M Goryachev, BT McAllister, A Quiskamp, C Thomson, ME Tobar, "Search for Invisible Axion Dark Matter in the 3.3–4.2  μeV Mass Range”, Phys. Rev. Lett., vol. 127, 261803, 2021.

2020

  1. M Goryachev, S Galliou, ME Tobar, “Generation of ultralow power phononic combs”, Phys. Rev. Research, vol. 2, 023035, 2020.

  2. BP Dix-Mathews, SW Schediwy, DR Gozzard, S Driver, KU Schreiber, R Carman, ME Tobar, “Methods for coherent optical Doppler orbitography,” J Geod, vol. 94, 55, 2020.

  3. JM Pate, M Goryachev, RY Chiao, JE Sharping, ME Tobar, “Casimir spring and dilution in macroscopic cavity optomechanics,” Nature Physics, vol. 116, pp.  117–1122,  2020.

  4. ME Tobar, BT McAllister, M Goryachev, “Broadband electrical action sensing techniques with conducting wires for low-mass dark matter axion detection”, Physics of the Dark Universe, vol. 30, 100624, 2020.

  5. AP Quiskamp, BT McAllister, G Rybka, ME Tobar, “Dielectric-boosted sensitivity to cylindrical azimuthally varying transverse-magnetic resonant modes in an axion Haloscope,” Phys. Rev. Applied vol. 14, 044051,  2020.

  6. JF Bourhill, NC Carvalho, M Goryachev, S Galliou, ME Tobar, “Generation of Coherent Phonons via a Cavity Enhanced Photonic Lambda Scheme”, Appl. Phys. Lett., vol. 117, 164001, 2020.

  7. G Flower, BT McAllister, M Goryachev, ME Tobar, “Determination of Niobium Cavity Magnetic Field Screening via a Dispersively Hybridized Magnonic Sensor”, Appl. Phys. Lett., vol. 117, 162401, 2020.

  8. Zijun C. Zhao, Thomas J. Raeber, Billy J. Murdoch, James G. Partridge, Dougal G. McCulloch, David R. McKenzie, “Unifying the optical and electrical properties of amorphous carbon: application to hopping photoconductivity and memristance”, Journal of Applied Physics, vol. 128, no. 21, 215109, 2020.

2019

  1. M Goryachev, BT McAllister, ME Tobar, “Probing Dark Universe with Exceptional Points,” Physics of the Dark Universe, vol. 23, 100244, 2019.

  2. BT McAllister, S Parker, EN Ivanov, ME Tobar, “Cross-correlation Signal Processing for Axion and WISP Dark Matter Searches,” IEEE Trans. on UFFC, vol. 66, no. 1, 236-243, 2019.

  3. C-G Shao, Y-F Chen, Y-J Tan, S-Q Yang, J Luo, ME, Tobar, JC Long, E Weisman, VA Kostelecký, “Combined Search for a Lorentz-Violating Force in Short-Range Gravity Varying as the Inverse Sixth Power of Distance,” Phys. Rev. Lett., 011102, 2019.

  4. M Goryachev, J Jeong, ME Tobar Michael, “Experimental Implementation of a Large Scale Multipost Re-Entrant Array,” Applied Physics Express, Appl. Phys. Express 12 054002, 2019.

  5. J Bourhill, M Goryachev, DL Creedon, BC Johnson, DN Jamieson, ME Tobar, “Low-temperature properties of whispering-gallery modes in isotopically pure silicon-28,” Phys. Rev. Applied, vol. 11, 044044, 2019.

  6. G Flower, J Bourhill, M Goryachev, ME Tobar, “Broadening Frequency Range of a Ferromagnetic Axion Haloscope with Strongly Coupled Cavity-Magnon Polaritons, Physics of the Dark Universe, vol. 25, 100306, 2019.

  7. J Krupka, A Pacewicz, B Salski, P Kopyt, J Bourhill, M Goryachev, ME Tobar, Electrodynamic improvements to the theory of magnetostatic modes in ferrimagnetic spheres and their applications to saturation magnetization measurements, Journal of Magnetism and Magnetic Materials, vol. 487, 165331, 2019.

  8. ME Tobar, BT McAllister, M Goryachev, “Modified Axion Electrodynamics as Impressed Electromagnetic Sources Through Oscillating Background Polarization and Magnetization,” Physics of the Dark Universe, vol. 26, 100339, 2019.

  9. M Goryachev, BT McAllister, ME Tobar, “Axion Detection with Precision Frequency Metrology,” Physics of the Dark Universe, vol. 26, 100345, 2019.

  10. C Thomson, M Goryachev, BT McAllister, ME Tobar, Corrigendum to “Axion detection with precision frequency metrology” [Phys. Dark Universe 26 (2019) 100345]

  11. MA Hosain, J-M Le Floch, JF Bourhill, J Krupka, ME Tobar, “Ferroelectric phase transition and crystal asymmetry monitoring of SrTiO3 using quasi TEm,1,1 and quasi TMm,1,1 modes, Journal of Applied Physics, vol. 126, no. 10, 104102, 2019.

  12. G Flower, M Goryachev, J Bourhill, ME Tobar, Experimental implementations of cavity-magnon systems: from ultrastrong coupling to applications in precision measurement, New J. Phys., vol. 21, 095004, 2019.

  13. PA Bushev, J Bourhill, M Goryachev, N Kukharchyk, E Ivanov, S Galliou, ME Tobar, S Danilishin, “Testing the generalized uncertainty principle with macroscopic mechanical oscillators and pendulums,” Phys. Rev. D, vol. 100, 066020, 2019.

  14. NC Carvalho, J. Bourhill, M. Goryachev, S. Galliou, ME Tobar, “Piezo-optomechanical coupling of a 3D microwave resonator to a bulk acoustic wave crystalline resonator,” Appl. Phys. Lett., vol. 115, 211102, 2019.

  15. M Goryachev, S Galliou, ME Tobar, “Observation of low-temperature magnetomechanic effects in crystalline resonant phonon cavities,” Phys. Rev. B, vol. 100, 174108, 2019.

2018

  1. M Goryachev, BT McAllister, ME Tobar, Axion detection with negatively coupled cavity arrays, Phys. Lett. A, vol. 382, pp 2199–2204, 2018.

  2. MA Hosain, J-M Le Floch, J Krupka, ME Tobar, “Aggregate frequency width, nuclear hyperfine coupling and Jahn–Teller effect of Cu2+ impurity ion ESR in SrLaAlO4 dielectric resonator at 20 millikelvin,” J. Phys.: Condens. Matter, vol. 30, 015802, 2018.

  3. BT McAllister, G Flower, LE Tobar, ME Tobar, “Tunable Super-Mode Dielectric Resonators for Axion Haloscopes,” Phys. Rev. Applied, vol. 9, 014028, 2018.

  4. M Goryachev, EN Ivanov, S Galliou, ME Tobar, “Inducing strong non-linearities in a phonon trapping quartz bulk acoustic wave resonator coupled to a superconducting quantum interference device,” Appl. Sci., 8, 602, 2018.

  5. J Bourhill, ME Tobar, “Better than Brillouin,” Nature Physics, vol 14, no. 6, pp 531-532, April, 2018.

  6. M Goryachev, Z Kuang, EN Ivanov, P Haslinger, H Muller, ME Tobar, “Next Generation of Phonon Tests of Lorentz Invariance using Quartz BAW Resonators,” IEEE Trans. on UFFC, vol. 65, no. 6, pp. 991-1000, 2018.

  7. M Goryachev, S Watt, J Bourhill, M Kostylev, ME Tobar, “Cavity magnon polaritons with lithium ferrite and three-dimensional microwave resonators at millikelvin temperatures,” Phys. Rev. B, 97, 155129, 2018.

  8. MA Hosain, JM Le Floch, J Krupka, ME Tobar, “Whispering Gallery Mode Dielectric Spectroscopy of SrLaAlO4 at MilliKelvin Temperatures,” J. Appl. Phys., vol. 123, 234103, 2018.

  9. MA Hosain, JM Le Floch, J Krupka, ME Tobar, “Rigorous ESR spectroscopy of Fe3+ impurity ion with oxygen vacancy in ferroelectric SrTiO3 crystal at 20 mK,” J. Phys.: Condens. Matter, vol. 30, 295805, 2018.

  10. BT McAllister, ME Tobar, Response to “Comment on ‘Higher order reentrant post modes in cylindrical cavities”, J. Appl. Phys., vol. 123, 226102, 2018.

  11. D Gozzard, S Schediwy, B Stone, M Messineo, ME Tobar, “Stabilized Free-Space Optical Frequency Transfer”, Physical Review Applied, vol. 10, 024046, 2018.

2017

  1. J-M Le Floch, C Murphy, JG Hartnett, V Madrangeas, J Krupka, D Cros. ME Tobar, Frequency-temperature sensitivity reduction with optimized microwave Bragg resonators,” Journal of Applied Physics, vol. 121, 014102, 2017.

  2. L Zhao, M Goryachev, J Bourhill, ME Tobar, “Indirect Methods to Control Population Distribution in a Large Spin System,” New J. Phys., vol. 19, 033016, 2017.

  3. N Kostylev, M Goryachev, A Bulanov, V Gavva, ME Tobar “Determination of Low Loss in Isotopically Pure Single Crystal 28Si at Low Temperatures and Single Microwave Photon Energy”, Sci. Rep. vol. 7, 44813, 2017.

  4. M Goryachev, ME Tobar, “Glasses: Achieving long phonon lifetimes,” Nature Materials, vol 16, no. 3, pp. 285-286, 2017.

  5. MA Hosain, J-M Le Floch, J Krupka, ME Tobar, “Whispering Gallery Mode ESR Spectroscopy and Parameters Measurement in Single Crystal SrLaAlO4 at Millikelvin Temperature,” Journal of Magnetic Resonance, vol. 281, pp. 209-216, 2017.

  6. NC Carvalho, O Aguiar, JF Bourhill, ME Tobar, “Sensitivity Characterization of a Parametric Transducer for Gravitational Wave Detection Through Optical Spring Effect,” Class. Quantum Grav., vol. 34, 175001, 2017.

  7. NC Carvalho, M Goryachev, J Krupka, P Bushev, ME Tobar, “Low-temperature microwave properties of biaxial YAlO3,” Phys. Rev. B, vol. 96, 045141, 2017.

  8. N Kostylev, M Goryachev, P Bushev, ME Tobar, “Electromagnetic properties of terbium gallium garnet at millikelvin temperatures and low photon energy,” Appl. Phys. Lett. vol. 111, 052402, 2017.

  9. ME Tobar, “Cryogenic Optomechanics and the Resurgence of the Resonant-Mass Gravitational Wave Detector,” New J. Phys., vol. 19, 091001, 2017.

  10. BT McAllister, Y Shen, G Flower, SR Parker, ME Tobar, “Higher order reentrant post modes in cylindrical cavities,” Journal of Applied Physics, vol. 122, 144501, 2017.

  11. BT McAllister, G Flower, EN Ivanov, M Goryachev, J Bourhill, ME Tobar, “The ORGAN experiment: An axion haloscope above 15 GHz,” Physics of the Dark Universe, vol. 18, pp. 67–72, 2017.

  12. LAN de Paula, M Goryachev, ME Tobar, “Experiments match simulations in a multiple post reentrant cavity.” Rev. Sci. Instrum. vol 88, 125104, 2017.

2016

  1. S Galliou, M Goryachev, P Abbe, X Vacheret, ME Tobar, R Bourquin, “Quality Factor Measurements of Various Types of Quartz Crystal Resonators Operating near 4K, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 63, no. 7, pp. 975-979, 2016.

  2. A Lo, P Haslinger, E Mizrachi, L Anderegg, H Müller, M Hohensee, M Goryachev, ME Tobar, “Acoustic Tests of Lorentz Symmetry Using Quartz Oscillators,” Phys. Rev. X, vol. 6, 011018, 2016.

  3. N Kostylev, M Goryachev, ME Tobar, “Superstrong Coupling of a Microwave Cavity to YIG Magnons,” Appl. Phys. Lett., vol. 108, 062402, 2016.

  4. BT McAllister, SR Parker, ME Tobar, “Axion dark matter coupling to resonant photons via magnetic field,” Phys. Rev. Lett., vol. 116, 161804, 2016.

  5. J-M Le Floch, N Delhote, M Aubourg, V. Madrangeas, D Cros, S Castelletto, ME Tobar, “Towards Achieving strong coupling in 3D-cavity with solid state spin resonance,” Journal of Applied Physics, vol. 119, 153901, 2016.

  6. J Bourhill, N Kostylev, M Goryachev, DL Creedon, ME Tobar, “Ultrahigh cooperativity interactions between magnons and resonant photons in a YIG sphere,” Phys. Rev. B, vol. 93, 144420, 2016.

  7. M Abgrall, J Guena, M Lours, G Santarelli, ME Tobar, S Bize, S Grop, B Dubois, Ch Fluhr, V Giordano, “High Stability Comparison of Atomic Fountains using two Different Cryogenic Oscillators,” IEEE Trans. on Ultrason., Ferroelec., and Freq. Contr., vol. 63, no., pp. 1198-1203, 2016.

  8. DL Creedon, M Goryachev, N Kostylev, T Sercombe, ME Tobar, A 3D Printed Superconducting Aluminium Microwave Cavity, Appl. Phys. Lett. vol. 109 , 032601, 2016.

  9. MJ Woolley, MF Emzir, GJ Milburn, M Jerger, M Goryachev, ME. Tobar, A Fedorov, “Quartz-superconductor quantum electromechanical system”, Phys. Rev. B 93, 224518, 2016.

  10. BT McAllister, SR Parker, ME Tobar, “3D lumped LC resonators as low mass axion haloscopes”, Phys. Rev. D 94, 042001, 2016.

  11. C-G Shao, Y-J Tan, W-H Tan, S-Q Yang, J Luo, ME Tobar, QG Bailey, JC Long, E Weisman, R Xu, VA Kostelecký, “Combined Search for Lorentz Violation in Short-Range Gravity,” Phys. Rev. Lett. 117, 071102, 2016.

  12. NC Carvalho, Y Fan, ME Tobar, “Piezoelectric tunable microwave superconducting cavity”, Rev. Sci. Instrum., vol. 87, 094702, 2016.

  13. BT McAllister, SR Parker, ME Tobar, “Erratum: Axion Dark Matter Coupling to Resonant Photons via Magnetic Field [Phys. Rev. Lett. 116, 161804 (2016)]”, Phys. Rev. Lett., vol. 117, 159901, 2016.

  14. C-G Shao, Y-F Chen, Y-J Tan, J Luo, S-Q Yang, ME Tobar, “Enhanced sensitivity to Lorentz invariance violations in short-range gravity experiments,” Phys. Rev. D., vol. 94, 104061, 2016.

  15. M Goryachev, ME Tobar, “Reconfigurable microwave photonic topological insulator,” Phys. Rev. Applied, vol. 6, 064006, 2016.

  16. S Galliou, S Deléglise, M Goryachev, L Neuhaus, G Cagnoli, S Zerkani, V Dolique, J Bon, X Vacheret, P Abbé, L Pinard, C Michel, T Karassouloff, T Briant, P-F Cohadon, A Heidmann, ME Tobar, R Bourquin, “A new method of probing mechanical losses of coatings at cryogenic temperatures,” Rev. Sci. Instrum. vol. 87, 123906, 2016.

2015

  1. J224.   M Goryachev, ME Tobar, “The 3D split-ring cavity lattice: a new metastructure for engineering arrays of coupled microwave harmonic oscillators,” New J. Phys. 17, 023003, 2015.

  2. J225.   N Kostylev, CR Locke, ME Tobar, JJ McFerran, “Spectroscopy and laser cooling on the 1S0-3P1 line in Yb via an injection-locked diode laser at 1111.6nm,” Appl. Phys. B, 118, pp. 517–525, 2015.

  3. J226.   DL Creedon, J-M Le Floch, M Goryachev, WG Farr, S Castelletto, ME Tobar, “Strong Coupling Between P1 Diamond Impurity Centres and 3D Lumped Photonic Microwave Cavity,” Phys. Rev. B, vol. 91, 140408(R), 2015.

  4. J227.   NC Carvalho, J-M Le Floch, J Krupka, ME Tobar, “Multi-mode technique for the determination of the biaxial Y2SiO5 permittivity tensor from 300 to 6 K,” Appl. Phys. Lett., vol. 106, 192904, 2015.

  5. J228.   C-G Shao, Y-J Tan, W-H Tan, S-Q Yang, J Luo, ME Tobar, “Search for Lorentz invariance violation through tests of the gravitational inverse square law at short-ranges,” Phys. Rev. D., vol. 91, 102007, 2015.

  6. J229.   M Goryachev, W Farr, NC Carvalho, DL Creedon, J-M Le Floch, S Probst, P Bushev, ME Tobar, “Discovery of Iron Group Impurity Ion Spin States in Single Crystal Y2SiO5 with Strong Coupling to Whispering Gallery Photons,” Appl. Phys. Lett, vol. 106, 232401, 2015.

  7. J230.   J Bourhill, EN Ivanov, ME Tobar, “Precision Measurement of a low-loss Cylindrical Dumbbell-Shaped Sapphire Mechanical Oscillator using Radiation Pressure,” Phys. Rev. A, vol. 92, 023817, 2015.

  8. J231.   J Bourhill, M Goryachev, WG Farr, Michael E Tobar, Collective Behavior of Cr3+ ions in Ruby Revealed by Whispering Gallery Modes,” Phys. Rev. A, 92, 023805, 2015.

  9. J232.   M Goryachev, N Kostylev, ME Tobar, “Single Photon Level Study of Microwave Properties of Lithium Niobate at milli-Kelvin Temperatures,” Phys. Rev. B, vol. 92, 060406(R), 2015.

  10. J233.   R Bara-Maillet, SR Parker, N Nand, Nitin, J-M le Floch, ME Tobar, “Microwave to Millimetre Wave Synthesis Chain Phase Noise Performance,” IEEE Trans. UFFC, vol. 62, no. 10, pp. 1895-1900, 2015.

  11. J234.   M Nagel, SR Parker, E Kovalchuck, PL Stanwix, J Hartnett, EN Ivanov, A Peters, ME Tobar “Direct Terrestrial Test of Lorentz Symmetry in Electrodynamics to 10-18,” Nature Comm., vol. 6, 8174, 2015.

  12. J235.   SR Parker, M Mewes, FN Baynes, ME Tobar, “Bounds on higher-order Lorentz-violating photon sector coefficients from an asymmetric optical ring resonator experiment,” Phys. Lett. A., vol. 379, no. 42, pp. 2681-2684, 2015.

  13. J236.   WG Farr, M Goryachev, J-M le Floch, P Bushev, ME Tobar, “Evidence of dilute ferromagnetism in rare-earth doped yttrium aluminium garnet,” Appl. Phys. Lett., vol. 107, 122401, 2015.

  14. J237.   R Bara-Maillet, DL Creedon, SR Parker, J-M Le Floch, ME Tobar, Frequency stability and phase noise performance of an X-Band to Ka-Band Active Multiplier, Electron. Lett., vol. 51, no. 24, pp. 2015 – 2017, 2015.

  15. J238.   M Goryachev, ME Tobar, Creating Tuneable Microwave Media from a 2D Lattice of Re-entrant Posts, Journal of Applied Physics, vol. 118, 204504, 2015.

2014

  1. M Goryachev, WG Farr, DL Creedon, ME Tobar, “Controlling a whispering-gallery-doublet-mode avoided frequency crossing: Strong coupling between photon bosonic and spin degrees of freedom,” Phys. Rev. A, vol. 89, 013810, 2014.

  2. R Bara-Maillet, M Goryachev, D Creedon, J-M Le Floch, ME Tobar, "Metal Bulk Foil Resistor Characterization for BAW Application at Low Cryogenic Temperatures", IEEE Transactions on Instrumentation & Measurement, vol. 63, no. 3, pp. 628-632, 2014.

  3. EN Ivanov, SR Parker, R Bara-Maillet, ME Tobar, “Noise properties of cryogenic microwave amplifiers and relevance to oscillator frequency stabilization,” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 61, no. 4, pp. 575-581, 2014.

  4. J-M Le Floch, Y Fan, G Humbert, Q Shan, D Férachou, R Bara-Maillet, M Aubourg, JG Hartnett, V Madrangeas, D Cros, J-M Blondy, J Krupka, ME Tobar, “Invited Article: Dielectric material characterization techniques and designs of high-Q resonators for applications from micro to millimeter-waves frequencies applicable at room and cryogenic temperatures,” Rev. Sci. Instrum., vol. 85, 031301, 2014.

  5. N Kostylev, E Ivanov, ME Tobar, JJ McFerran, “Sub-Doppler cooling of ytterbium with the 1S0−1P1 transition, including 171 Yb (I=12), Opt. Soc. Am. B, vol. 31, no. 7, 2014.

  6. Q Shan, J Yang, JM le Floch, Y Fan, EN Ivanov, ME Tobar, “Simulating GPS radio signal to synchronize network – A new technique for redundant timing,” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 61, no. 7, pp. 1075-1085, 2014.

  7. M Goryachev, WG Farr, DL Creedon, ME Tobar, “Spin-Photon Interaction in a Cavity with Time-Reversal Symmetry Breaking,” Phys. Rev. B, vol. 89, 224407, 2014.

  8. Y Fan, Z Zhang, NC Carvalho, JM le Floch, Q Shan, ME Tobar, “Investigation of higher order reentrant modes of a cylindrical Reentrant-Ring cavity resonator,” IEEE Trans. on Microwave Theory and Techniques, vol. 62, no. 8, pp. 1657-1662, 2014.

  9. M Goryachev, ME Tobar, “Effects of geometry on quantum fluctuations of phonon-trapping acoustic cavities,” New J. Phys., vol. 16, 083007, 2014.

  10. S Probst, A Tkalcec, H Rotzinger, D Rieger, J-M Le Floch, M Goryachev, ME Tobar, AV Ustinov, PA Bushev, “Three-dimensional cavity quantum electrodynamics with a rare-earth spin ensemble,” Phys. Rev. B, vol. 90, 100404 (R), 2014.

  11. M Goryachev, WG Farr, S Galliou, ME Tobar, “Jump chaotic behaviour of ultra low loss bulk acoustic wave cavities,” Appl. Phys. Lett., vol. 105, 063501, 2014.

  12. NR Nand, M Goryachev, J-M le Floch, DL Creedon, ME Tobar, “Hyperparametric effects in a whispering-gallery mode rutile dielectric resonator at liquid helium temperatures,” Journal of Applied Physics, vol. 116, 134105, 2014.

  13. WG Farr, M Goryachev, DL Creedon, ME Tobar, “Strong coupling between whispering gallery modes and chromium ions in ruby,” Phys. Rev. B, vol. 90, 054409, 2014.

  14. J-M Le Floch, C Bradac, N Nand, S Castelletto, ME Tobar, T. Volz, “Addressing a single NV- spin with a macroscopic dielectric microwave cavity,” Appl. Phys. Lett., vol. 105, 133101, 2014.

  15. NC Carvalho, Y Fan, J-M Le Floch, and ME Tobar, “Piezoelectric Voltage Coupled Reentrant Cavity Resonator,” Rev Sci. Instrum., vol. 85, 104705, 2014.

  16. M Goryachev, EN Ivanov, F van Kann, S Galliou, ME Tobar, “Observation of the Fundamental Nyquist Noise Limit in an Ultra-High Q-Factor Cryogenic Bulk Acoustic Wave Cavity,” Appl. Phys. Lett., vol. 105, 153505 2014.

  17. M Goryachev, WG Farr, DL Creedon, Y Fan, M Kostylev, ME Tobar, “High cooperativity cavity QED with Magnons at Microwave Frequencies,” Phys. Rev. Applied, vol. 2, 054002, 2014.

  18. M Goryachev, ME Tobar, “Gravitational wave detection with high frequency phonon trapping acoustic cavities,” Phys. Rev. D., vol. 90, 102005, 2014.

  19. Q Shan, J-M le Floch, Y Fan, ME Tobar, “9.7 GHz oscillator based on single sapphire layer loaded cavity at reflect mode.” Journal of National University of Defense Technology, vol. 36, no. 4,pp. 124-128, 2014.

2013

  1. K Benmessai, WG Farr, DL Creedon, Y Reshitnyk, JM leFloch, T Duty, ME Tobar, “Hybrid electron spin resonance and whispering gallery mode resonance spectroscopy of Fe3+ in sapphire,” Phys. Rev. B, vol. 87, 094412, 2013.

  2. JG Hartnett, ME Tobar, EN Ivanov, AN Luiten, “Optimum Design of a High-Q Room-Temperature Whispering-Gallery-Mode X-band Sapphire Resonator,” IEEE Trans. on UFFC, vol. 6, no. 6, pp. 1041-47, 2013.

  3. SR Parker, G Rybka, ME Tobar, “Hidden sector photon coupling of resonant cavities,” Phys. Rev. D, vol. 87, 115008, 2013.

  4. ME Tobar, PL Stanwix, JJ McFerran, J Guena, M Abgrall,S Bize, A Clairon, Ph Laurent, P Rosenbusch, D Rovera, G Santarelli, “Testing local position and fundamental constant invariance due to periodic gravitational and boost using long-term comparison of the SYRTE atomic fountains and H-masers,”  Phys. Rev. D, vol. 87, 122004, 2013.

  5. RLe Targat, L Lorini, YLe Coq, M Zawada, J Guena, M Abgrall, M Gurov, P Rosenbusch, DG Rovera, B Nagorny, R Gartman, PG Westergaard, ME Tobar, M Lours, G Santarelli, A Clairon, S Bize, Ph Laurent, P Lemonde J Lodewyck, “Experimental realization of an optical second with strontium lattice clocks,” Nat. Commun., vol. 4, 2109, 2013.

  6. S Galliou, M Goryachev, R Bourquin, P Abbe, J-P Aubry, ME Tobar, “Extremely Low Loss Phonon-Trapping Cryogenic Acoustic Cavities for Future Physical Experiments,” Sci. Rep. 3, 2132; DOI:10.1038/ srep02132, 2013.

  7. NR Nand, SR Parker, EN Ivanov, J-M le Floch, JG Hartnett, ME Tobar, “Resonator power to frequency conversion in a cryogenic sapphire oscillator,” Appl. Phys. Lett., vol. 103, 043502, 2013.

  8. R Bara-Maillet, SR Parker, J-M LeFloch, ME Tobar, “Intrinsic phase noise properties and frequency stability of a millimetre wave module at 90GHz,” Elect. Lett. vol. 49, no. 14, pp. 886-887, 2013.

  9. M Goryachev, WG Farr, EN Ivanov, ME Tobar, “Anomalously strong nonlinearity of unswept quartz acoustic cavities at liquid helium temperatures,” J. Appl. Phys., vol. 114, no. 9, 094506, 2013.

  10. M Goryachev, DL Creedon, S Galliou, ME Tobar, “Observation of Rayleigh phonon scattering through excitation of extremely high overtones in low-loss cryogenic acoustic cavities for hybrid quantum systems,” Phys. Rev. Lett., vol. 111, no. 8,  085502, 2013.

  11. SR Parker, JG Hartnett, RG Povey, ME Tobar, “Cryogenic resonant microwave cavity searches for hidden sector photons,” Phys. Rev. D, 88, 112004, 2013.

  12. J Bourhill, K Benmessai, M Goryachev, DL Creedon, WG Farr, ME Tobar, “Spin bath maser in a cryogenically cooled sapphire whispering gallery mode resonator,” Phys. Rev. B, vol. 88, 235104, 2013.

  13. WG Farr, DL Creedon, M Goryachev, K Benmessai, ME Tobar, “Ultrasensitive microwave spectroscopy of paramagnetic impurities of sapphire crystals at millikelvin temperatures,” Phys. Rev. B, vol. 88, 224426, 2013.

  14. M Goryachev, WG Farr, ME Tobar, Giant g-factors of Natural Impurities in Synthetic Quartz, Appl. Phys. Lett. vol. 103, 262404, 2013.

  15. J-M Le Floch, Y Fan, M Aubourg, D Cros, NC Carvahlo, Q Shan, J Bourhill, EN Ivanov, G Humbert, V Madrangeas, ME Tobar. “Rigorous analysis of highly tunable cylindrical Transverse Magnetic mode re-entrant cavities,” Rev. Sci. Instrum., vol. 84, 125114, 2013.

2012

  1. M Mrad, PY Bourgeois, ME Tobar, Y Kersale´, V Giordano, “Analysis of the whispering gallery mode sapphire Fe3+ maser under magnetic field,” Eur. Phys. J. Appl. Phys., vol 57: 21005, 2012.

  2. R Bara, J-M Le Floch, ME Tobar, PL Stanwix, S Parker, JG Hartnett, EN Ivanov, "Generation of 103.75 GHz CW Source with 5.10-16 Frequency Instability Using Cryogenic Sapphire Oscillators" IEEE Microw. Wireless Comp. Lett., vol. 22, no 2, pp. 85-87, 2012.

  3. DL Creedon, K Benmessai, WP Bowen, ME Tobar, “Four wave mixing from Fe3+ spins in sapphire,” Phys. Rev. Lett., vol. 108, 093902, 2012.

  4. K Benmessai, DL Creedon, M Mrad, J-M Le Floch, PY Bourgeois, Y Kersale, V Giordano, ME Tobar, “Controlling the frequency-temperature sensitivity of a cryogenic sapphire maser frequency standard by manipulating Fe3+ spins in the sapphire lattice,” Phys. Rev. B, vol. 85, 075122, 2012.

  5. J Guéna, M Abgrall, D Rovera, P Laurent, B Chupin, M Lours, G Santarelli, P Rosenbusch, ME Tobar, R Li, K Gibble, A Clairon, S Bize, “Progress in atomic fountains at LNE-SYRTE,” IEEE Trans. on UFFC, vol. 59, no. 3, pp. 391-410, 2012.

  6. M Goryachev, DL Creedon, EN Ivanov, S Galliou, R Bourquin, ME Tobar, “Extremely low-loss acoustic phonons in a quartz bulk acoustic wave resonator at millikelvin temperature,” Appl. Phys. Lett., vol. 100, 243504, 2012.

  7. FN Baynes, ME Tobar, AN Luiten, “Oscillating test of the isotropic shift of the speed of light,” Phys. Rev. Lett.,  vol. 108, 260801, 2012.

  8. BA Zeb, Y Ge, KP Esselle, Z Sun, ME Tobar “A simple dual-band electromagnetic band gap resonator antenna based on inverted reflection phase gradient,” IEEE Trans. on Antennas and propagation, vol. 6, no. 10, pp. 4522-4529, 2012.

  9. J Guena, M Abgrall, D Rovera, P Rosenbusch, ME Tobar, Ph. Laurent, A Clairon, S Bize, “Improved tests of local position invariance using 87Rb and 133Cs, Phys. Rev. Lett.,  vol. 109, 080801, 2012.

  10. OD Aguiar, JJ Barroso, NC Carvalho, PJ Castro, CE Cedeño M, CF da Silva Costa, JCN de Araujo, EFD Evangelista, SR Furtado, OD Miranda, PHRS Moraes, ES Pereira, PR Silveira, C Stellati, NF Oliveira Jr, Xavier Gratens, LAN de Paula, ST de Souza, RM Marinho Jr, F G Oliveira, C Frajuca, FS Bortoli, R Pires, DFA Bessada, NS Magalhães, MES Alves, AC Fauth, RP Macedo, A Saa, DB Tavares, CSS Brandão, LA Andrade, GF Marranghello, CBMH Chirenti, G Frossati, A de Waard, M E Tobar, CA Costa, WW Johnson, JA de Freitas Pacheco, GL Pimentel, “Status Report of the Schenberg Gravitational Wave Antenna,” J. Phys.: Conf. Ser. 363 012003, 2012.

  11. DL Creedon, K Benmessai, ME Tobar, “Frequency conversion in a high Q-factor sapphire whispering gallery mode resonator due to paramagnetic nonlinearity,” Phys. Rev. Lett.,  vol. 109, 143902, 2012.

  12. EN Ivanov, J Bourhill, DL Creedon, JG Hartnett, ME Tobar, “‘Fast light’ effect in experiments with cryogenic resonators,” J. Phys. B: At. Mol. Opt. Phys. Vol. 45, 221001, 2012.

2011

  1. JG Hartnett, D Mouneyrac, J Krupka, JM Le Floch, ME Tobar, D Cros, " Microwave properties of semi-insulating silicon carbide between 10 and 40 GHz and at cryogenic temperatures," Journal of Applied Physics, vol. 109, 064107, 2011.

  2. J-M Le Floch, R Bara, JG Hartnett, ME Tobar, D Mouneyrac, D Passerieux, D Cros, J Krupka, P Goy, S Caroopen "Electromagnetic properties of polycrystalline diamond from 35 K to room temperature and microwave to terahertz frequencies," Journal of Applied Physics, vol. 109, 094103, 2011.

  3. SR Parker, M Mewes, PL Stanwix, ME Tobar, “Cavity bounds on higher-order Lorentz-violating coefficients,” Phys. Rev. Lett., vol. 106, 180401, 2011.

  4. JG Hartnett, J Jaeckel, RG Povey, ME Tobar, “Resonant regeneration in the sub-quantum regime – A demonstration of fractional quantum interference,” Physics Letters B, vol. 698, pp. 346–352, 2011.

  5. S Doeleman, T Mai, AEE Rogers, JG Hartnett, ME Tobar, N Nand, “Adapting a Cryogenic Sapphire Oscillator for Very Long Baseline Interferometry,” publications of the Astronomical Society of the Pacific, vol. 123, pp. 582–595, 2011.

  6. DL Creedon, Y Reshitnyk, W Farr, JM Martinis, TL Duty, ME Tobar, “High Q-factor sapphire whispering gallery mode microwave resonator at single photon energies and millikelvin temperatures,” Appl. Phys. Lett., vol. 98, 222903, 2011.

  7. DL Creedon, ME Tobar, EN Ivanov, JG Hartnett, “High-resolution flicker-noise-free frequency measurements of weak microwave signals,” IEEE Trans. MTT, vol. 59, no. 6, pp. 1651-1657, 2011.

  8. D Ferachou, G Humbert, J-M Le Floch, M Aubourg, J-L Auguste, ME Tobar, D Cros and J-M Blondy, “Compact hollow-core photonic band gap resonator with optimised metallic cavity at microwave frequencies,” Electron. Lett., vol. 47, no. 14, 805-U92, 2011.

  9. RG Povey, JG Hartnett, ME Tobar, "Microwave cavity hidden sector photon threshold crossing," Physical Review D, vol. 84, 055023, 2011.

  10. FN Baynes, AN Luiten, ME Tobar, " Testing Lorentz invariance using an odd-parity asymmetric optical resonator," Physical Review D, vol. 84, 081101, 2011.

  11. J-M Le Floch, ME Tobar, G Humbert, D Mouneyrac, D Férachou, M Aubourg, JG Hartnett, D Cros, J-M Blondy, J Krupka, “Low-loss dielectric material characterization and high-Q resonator design from microwave to millimetre waves frequencies,” Journal of Physical Science and Application, vol. 1, pp. 15-28, 2011.

2010

  1. K Benmessai, P-Y Bourgeois, ME Tobar, N Bazin, Y Kersale, VGiordano, “Amplification process in a high-Q cryogenic whispering gallery mode sapphire Fe3+ maser,” Meas. Sci. Technol. vol. 21, 025902, 2010.

  2. JG Humbert, J-M le Floch, D Mouneyrac, D Férachou, M Aubourg, ME Tobar, D Cros, J-M Blondy, “Hollow-core resonator based on out-of-plane two dimensional photonic band-gap crystal cladding at microwave frequencies,” Appl. Phys. Lett., vol. 96, 051108, 2010.

  3. ME Tobar, P Wolf, S Bize, G Santarelli, VV Flambaum, “Testing local Lorentz and position invariance and variation of fundamental constants by searching the derivative of the comparison frequency between a cryogenic sapphire oscillator and hydrogen maser,” Phys. Rev. D., vol. 81, 022003, 2010.

  4. DL Creedon, K Benmessai, ME Tobar, JG Hartnett, P-Y Bourgeois, Y Kersalé, J-M Le Floch, V Giordano, “High Power Solid-State Sapphire Whispering Gallery Mode Maser,” IEEE Trans. on UFFC, vol. 57, no. 3, pp. 641-646, 2010.

  5. J Guéna, P Rosenbusch, P Laurent, M Abgrall, D Rovera, G Santarelli, ME Tobar, S Bize, A Clairon, “Demonstration of a Dual Alkali Rb/Cs Fountain Clock,” IEEE Trans. on UFFC, vol. 57, no. 3, pp. 647-653, 2010.

  6. EN Ivanov, D Mouneyrac, J-M Le Floch, ME Tobar, D Cros, “Precise phase synchronization of a cryogenic microwave oscillator,” Rev. Sci. Insrum., vol. 81, no. 6, 064702, 2010.

  7. MA Hohensee, PL Stanwix, ME Tobar, SR Parker, DF Phillips, RL Walsworth, "Improved constraints on isotropic shift and anisotropies of the speed of light using rotating cryogenic sapphire oscillators," Physical Review D, vol. 82, 076001, 2010.

  8. DL Creedon, ME Tobar, J-M Le Floch, Y Reshitnyk, T. Duty, "Single-crystal sapphire resonator at millikelvin temperatures: Observation of thermal bistability in high-Q factor whispering gallery modes," Physical Review B, vol. 82, 104305, 2010.

  9. RG Povey, JG Hartnett, ME Tobar, "Microwave cavity light shining through a wall optimization and experiment," Physical Review D, vol. 82, 052003, 2010.

  10. D Mouneyrac, JG Hartnett, JM Le Floch, ME Tobar, D Cros, J Krupka, "Detrapping and retrapping of free carriers in nominally pure single crystal GaP, GaAs, and 4H-SiC semiconductors under light illumination at cryogenic temperatures," Journal of Applied Physics, vol. 108, 104107, 2010.

2009

  1. P Wolf, CJ Borde, A Clairon, L Duchayne, A Landragin, P Lemonde, G Santarelli, W Ertmer, E Rasel, FS Cataliotti, M Inguscio, GM Tino, P Gill, H Klein, S Reynaud, C Salomon, E Peik, O Bertolami, P Gil, J Paramos, C Jentsch, U Johann, A Rathke, P Bouyer, L Cacciapuoti, D Izzo, P de Natale, B Christophe, P Touboul, SG Turyshev, JD Anderson, ME Tobar, F Schmidt-Kaler, J Vigue, A Madej, L Marmet, M-C Angonin, P Delva, P Tourrenc, G Metris, H Muller, R Walsworth, ZH Lu, L Wang, K Bongs, A Toncelli, M Tonelli, H Dittus, C Lammerzahl, G Galzerano, P Laporta, J Laskar, A Fienga, F Roques, K Sengstock, “Quantum Physics Exploring Gravity in the outer solar system: the SAGAS project”, Exp. Astronomy, vol. 23, no. 2, 651-687, (2009).

  2. EN Ivanov, ME Tobar, “Low Phase Noise Sapphire Crystal Microwave Oscillators: Current Status,” IEEE Trans. Ultrason. Ferroelectr. Freq. Control, vol. 56, no. 2, pp. 263-269, 2009.

  3. S Parker, EN Ivanov, ME Tobar, “Method of power recycling in co-axial Mach-Zender interferometers for low noise measurements,” IEEE Trans. UFFC, vol. 56, no. 5, May 2009.

  4. J Millo , M Abgrall , M Lours , E English , H Jiang , J Guena , A Clairon , S Bize , G Santarelli , ME Tobar, “Ultra-low noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock,” Appl. Phys. Lett., vol. 94, 141105, 2009 also selected for the May 2009 issue of Virtual Journal of Ultrafast Science.

  5. EN Ivanov, ME Tobar, “Microwave Phase Detection at the Level of 10-11 rad,” Rev. Sci. Instrum., vol. 80, 044701, 2009.

  6. K. Benmessai, M.E. Tobar, N. Bazin, P.-Y. Bourgeois, Y. Kersalé,  and V. Giordano, “Creating traveling waves from standing waves from the gyrotropic paramagnetic properties of Fe3+ ions in a high-Q whispering gallery mode sapphire resonator,” Phys. Rev. B, vol. 79, 174432, 2009.

  7. G. Santarelli, G. Governatori, D. Chambon, M. Lours, P. Rosenbusch, J. Guéna, F. Chapelet, S. Bize, M. E. Tobar, Th. Potier and A. Clairon, “Switching atomic fountain clock microwave interrogation signal and high resolution phase measurements”, Trans. UFFC, vol. 56, no. 7, 2009.

  8. ME Tobar, EN Ivanov, PL Stanwix, J-MG le Floch, JG Hartnett, “Rotating odd-parity Lorentz invariance test in electrodynamics,” Phys. Rev. D, vol. 80, 125024, 2009.

  9. OD Aguiar, JJ Barroso, RM Marinho, GL Pimentel, ME Tobar, “Broadband Resonant Mass Gravitational Wave Detection,” International Journal of Modern Physics D, vol. 18, no. 14, pp. 2317-2322, 2009.

2008

  1. J-M le Floch, ME Tobar, D Cros, J Krupka, “Low-loss materials for high Q-factor Bragg reflector resonators,” Appl. Phys. Lett.,  vol. 92, 032901, 2008.

  2. J Krupka, D Mouneyrac, JG Hartnett, ME Tobar, “Measurements of permittivity and dielectric loss tangent of semi-insulating Gallium Arsenide and Gallium Phosphide at microwave frequencies,” IEEE Trans. MTT, vol. 56, no. 5, pp. 1201-1206, 2008.

  3. C.R. Locke, E.N. Ivanov, J.G. Hartnett, P.L. Stanwix, M.E. Tobar, “Invited Article: Design techniques and noise properties of ultra-stable cryogenically-cooled sapphire-dielectric resonator oscillators,” Rev. Sci. Instrum., vol. 79, 051301, 2008.

  4. OD Aguiar, LA Andrade, JJ Barroso, PJ Castro, CA Costa, ST de Souza, A de Waard, AC Fauth, C Frajuca, G Frossati, SR Furtado, X Gratens, TMA Maffei, NS Magalhães, RM Marinho Jr, NF Oliveira Jr, GL Pimentel, MA Remy, ME Tobar, E Abdalla, MES Alves, DFA Bessada, FS Bortoli, CSS Brandão, KMF Costa, HAB de Araújo, JCN de Araujo, EM de Gouveia Dal Pino, W de Paula, EC de Rey Neto, EFD Evangelista, CH Lenzi, GF Marranghello, OD Miranda, SR Oliveira, R Opher, ES Pereira, C Stellati, J Weber, “The Schenberg spherical gravitational wave detector: the first commissioning runs, “ Class. Quantum Grav., vol. 25, 114042, 2008.

  5. K Benmessai, DL Creedon, ME Tobar, P-Y Bourgeois, Y Kersale, V Giordano, “Measurement of fundamental thermal noise limit in a cryogenic sapphire frequency standard using bimodal maser oscillations,” Phys. Rev. Lett., vol. 100, 233901, 2008.

  6. JG Hartnett, D Mouneyrac, J-M le Floch, J Krupka, ME Tobar, D Cros, “Modified permittivity observed in bulk Gallium Arsenide and Gallium Phosphide samples at 50 K using the Whispering Gallery mode method,” Appl. Phys. Lett., vol. 93, 062105 2008.

  7. JG Hartnett, D Mouneyrac, JM le Floch, J Krupka, ME Tobar, D Cros, “Observation of persistent photoconductivity in bulk Gallium Arsenide and Gallium Phosphide samples at cryogenic temperatures using the Whispering Gallery mode method,” J. App. Phys., vol. 104, 113714, 2008.

  8. GL Pimentel, OD Aguiar, JJ Barroso, ME Tobar. Investigation of ultra-high sensitivity klystron transducers for broadband resonant-mass gravitational wave detectors. J. Phys. Conf. Ser., vol. 122, p. 012028, 2008.

2007

  1. AC Fowler, ME Tobar, CR Locke, EN Ivanov, JG Hartnett, JD Anstie, D Cros, “Exciting traveling waves in high-Q Structures using microstrip,” Journ. Eur. Ceram. Soc., Vol 27/8-9 pp 3023-3026, 2007.

  2. JG Hartnett, ME Tobar, J-M le Floch, J Krupka, P-Y Bourgeois, “Anisotropic paramagnetic susceptibility of crystalline ruby at cryogenic temperatures,” Phys. Rev. B, vol. 75, 024415, 2007.

  3. M Hohensee, A Glenday, C-H Li, ME Tobar, P Wolf, “Erratum: New methods of testing Lorentz violation in electrodynamics,” Phys. Rev. D 75, 049902(E), 2007.

  4. D Chambon, M Lours, F Chaplet, S Bize, ME Tobar, A Clairon, G Santarelli, “Design and metrological features of microwave synthesizers for atomic fountain frequency standard,” IEEE Trans. UFFC, vol. 54, no. 4, pp 729-735, 2007.

  5. H Müller, PL Stanwix, ME Tobar, EN Ivanov, P Wolf, S Herrmann, A Senger, E Kovalchuk, A Peters, “Relativity tests by complementary rotating Michelson-Morley experiments,” Phys. Rev Lett., vol. 99, 050401, 2007.

  6. J-M le Floch, ME Tobar, D Cros, J Krupka, “High Q-factor distributed Bragg reflector resonators with reflectors of arbitrary Thickness,” IEEE Trans. UFFC, vol. 54, no. 12, pp 2689-2695, 2007.

  7. JG Hartnett, ME Tobar, J Krupka, “Dependence of the dielectric permittivity of single-crystal quartz on thermal deformation at cryogenic temperatures,” Journal of Applied Physics, vol. 102, 074103, 2007.

  8. JM le Floch , ME Tobar, D Mouneyrac, D Cros , J Krupka, “Discovery of Bragg confined hybrid modes with high Q-factor in a hollow dielectric resonator,” Appl. Phys. Lett.,  vol. 91, 142907, 2007.

  9. JK Benmessai, PY. Bourgeois, Y Kersale, N Bazin, ME Tobar, JG Hartnett, M Oxborrow and V Giordano, “Frequency instability measurement system of cryogenic maser oscillator,” Electron. Lett., vol. 43, no. 25, pp. 1436-7, 2007.

2006

  1. JG Hartnett, ME Tobar, EN Ivanov, J Krupka, “Room temperature measurement of the anisotropic loss tangent of sapphire using the whispering-gallery-mode technique,” IEEE Trans on UFFC, vol. 53 no. 1, pp.34-38, 2006.

  2. T Zychowicz, J Krupka, ME Tobar, “Whispering gallery modes in hollow spherical dielectric resonators,” Journ. Eur. Ceram. Soc., vol. 26, no. 10-11, pp. 2193-2194, 2006.

  3. JD Anstie, JG Hartnett, ME Tobar, EN Ivanov, PL Stanwix, “Second generation 50K dual-mode sapphire oscillator”, IEEE Trans on UFFC, vol. 53 no. 2, pp.284-288, 2006.

  4. JA Torrealba, ME Tobar, EN Ivanov, CR Locke, J-M Le Floch, D Cros, JG Hartnett, “Room Temperature Dual-Mode Oscillator- First Results”, Electron. Lett., vol. 42, no. 2, pp.99-100, 2006.

  5. JJ McFerran, ST Dawkins, PL Stanwix, ME Tobar, AN Luiten, “Optical frequency synthesis from a cryogenic microwave sapphire oscillator,” Opt. Expr., vol. 14, no. 10, pp. 4316-4327, 2006.

  6. P-YBourgeois, M Oxborrow, ME Tobar, N Bazin, Y Kersale, V Giordano, "Maser oscillation from electronic spin resonance in a cryogenic sapphire frequency standard." Int. Jour. Mod. Phys. B, vol. 20 (11-13), pp. 1606-1612, Part 2 Sp. Iss. SI, MAY 20 2006.

  7. PL Stanwix, ME Tobar, M Susli, CR Locke, EN Ivanov, J Winterflood, JG Hartnett, F van Kann, P Wolf, “Rotating Michelson-Morley based dual cavity cryogenic sapphire oscillator,” Annales Françaises des Microtechniques et de Chronométrie (AFMC), vol 54, pp.77-81, 2006.

  8. C. Vian, P. Rosenbusch, H. Marion, S Bize, , L Cacciapuoti, M Abgrall, D Chambon, G. Satarelli, Ph Laurent, A Clairon, AN Luiten ME Tobar, C Salomon, “Frequency comparison between two atomic fountain clocks at the 10-16 level,” Annales  Françaises des Microtechniques et de Chronométrie (AFMC), vol 54, pp.83-88, 2006.

  9. JG Hartnett, ME Tobar, “Properties of gravitational waves in Cosmological General Relativity”, Int. J. Theor. Phys., International Journal of Theoretical Physics, Vol. 45, No. 11, pp. 2213-2222, 2006.

  10. J-M LeFloch, JD Anstie, ME Tobar, JG Hartnett, P-Y Bourgeois, D Cros, “Whispering modes in anisotropic and isotropic dielectric spherical resonators”, Phys. Lett A, vol. 359, no. 1, pp. 1-7, 2006.

  11. MV Jacob, JG Hartnett, J Mazierska, J Krupka, ME Tobar, “Dielectric Characterisation of Barium Fluoride at Cryogenic Temperatures using a TE011 and quasi TE0mn Mode Dielectric Resonators”, Cryogenics, vol. 46, pp. 730-735, 2006.

  12. ME Tobar, EN Ivanov, CR Locke, PL Stanwix, JG Hartnett, AN Luiten, RB Warrington, PTH Fisk, MA Lawn, M Wouters, S Bize, G Santarelli, P Wolf A Clairon, P Guillemot, “Long term operation and performance of cryogenic sapphire oscillators,” IEEE Trans. UFFC, vol. 53, no. 12, pp 2386-2393, 2006.

  13. EN Ivanov and ME Tobar, “Low phase noise microwave oscillators with interferometic signal processing”, IEEE Trans. MTT, vol. 54, no. 8, pp. 3284-3294, 2006.

  14. PL Stanwix, ME Tobar, P Wolf, CR Locke, EN Ivanov, “Improved test of Lorentz invariance in electrodynamics using rotating cryogenic sapphire oscillators,” Phys. Rev. D, vol. 74, 081101(R), 2006.

  15. JG Hartnett, CR Locke, EN Ivanov, ME Tobar, PL Stanwix, “Cryogenic sapphire oscillator with exceptionally high long-term frequency stability,” Applied Physics Letters, vol. 89, no. 20, 203513, 2006.

  16. F Chapelet, H Marion, D Chambon, C Vian, P Rosenbusch, S Bize, G Santarelli, C Salomon, AN Luiten, ME Tobar, A Clairon, “Final advances in atomic fountains,” Journal de Physique IV 135, pp. 115-117, 2006.

2005

  1. J102.   ME Tobar, P Wolf, A Fowler, JG Hartnett, “New methods of testing Lorentz violation in electrodynamics,” Phys. Rev. D, vol. 71, no. 2, 025004, 2005.

  2. J103.   ME Tobar, J-M le Floch, D Cros, JG Hartnett, “Distributed Bragg reflector resonators with cylindrical symmetry and extremely high Q-factors,” IEEE Trans. UFFC, vol. 52, no. 1, pp. 17-26, 2005.

  3. J104.   C. Vian, P. Rosenbusch, H. Marion, S. Bize, L. Cacciapuoti, S. Zhang, M. Abgrall, D. Chambon, I. Maksimovic, P. Laurent, G. Santarelli, A. Clairon, A. Luiten, M. Tobar, C. Salomon. “BNM-SYRTE Fountains: Recent Results,” IEEE Trans. Instrum. Meas., vol. 54, no. 2, pp. 833-836, 2005.

  4. J Krupka, ME Tobar, JG Hartnett, D Cros, J-M le Floch, “Extremely high Q-factor dielectric resonators for millimeter wave applications”, IEEE Trans. on MTT, vol, 52, no. 3, pp. 702-712, 2005.

  5. J Krupka, A Cwikla, M Mrozowski, RN Clarke, ME Tobar, ”High Q-factor microwave Fabry-Perot resonator with distributed Bragg reflectors,” IEEE Trans. UFFC, vol. 52, no. 9, pp. 1443-1451, 2005.

  6. ME Tobar, “Global representation of the fine structure constant and its variation,” Metrologia, vol. 42, no. 2, pp. 129-133, 2005.

  7. JG Hartnett, ME Tobar, P Stanwix, T Morikawa, D Cros, “Designs of a Microwave TE011 Mode Cavity for a Space Borne H-Maser,” IEEE Trans. UFFC, vol. 52, no. 10, pp. 1638-1643, 2005.

  8. C Daussy, O Lopez, A Amy-Klein, A Goncharov, M Guinet, C Chardonnet, F Narbonneau, M Lours, D Chambon, S Bize, A Clairon, G Santarelli, ME Tobar, AN Luiten, “Long-distance frequency dissemination with a resolution of 10-17,” Phys. Rev. Lett., vol. 94, 203904, 2005.

  9. N Boubekeur, JG Hartnett, ME Tobar, N Bazin, Y Kersalé and V Giordano, “Frequency stability of Ti3+ doped whispering gallery mode sapphire resonator oscillator at 34K,” Electron. Lett., vol. 41, no. 9, pp. 31-32, 2005.

  10. S Bize, P Laurent, M Abgrall, H Marion, I Maksimovic, L Cacciapuoti, J Grunert, C Vian, F Pereira dos Santos, P Rosenbusch, P Lemonde, G Santarelli, P Wolf, A Clairon, A N Luiten, M E Tobar and C Salomon, “Einstein, cold atom clocks and tests of fundamental theories,” SPECIAL ISSUE: Einstein Year, J. Phys. B: At. Mol. Opt. Phys. vol. 38, no. 9, S449-S468, 2005.

  11. PL Stanwix, ME Tobar, P Wolf, M Susli, CR Locke, EN Ivanov, J Winterflood, F van Kann, “Test of Lorentz invariance in electrodynamics using rotating cryogenic sapphire microwave oscillators,” Phys. Rev. Lett., vol. 95, 040404, 2005.

  12. D Chambon, S Bize, M Lours, F Narbonneau, H Marion, A Clairon, G Santarelli, A Luiten, ME Tobar, “Design and realization of a flywheel oscillator for advanced time and frequency metrology,” Rev. Sci. Instrum., vol. 76, 094704, 2005.

  13. P-Y Bourgeois, N Bazin, Y Kersale, V Giordano, ME Tobar, M Oxborrow, "Maser oscillation from electronic spin resonance in a cryogenic sapphire frequency standard." Appl. Phys. Lett., vol 87, no. 22, Art. No. 224104 Nov 28 2005.

  14. ME Tobar, P Wolf, PL Stanwix, “Comment on Test of constancy of speed of light with rotating cryogenic optical resonators,” Phys. Rev. A., vol. 72, no. 6, Art. No. 066101, Dec. 2005.

2004

  1. MV Jacob, JG Hartnett, J Mazierska, V Giordano, J Krupka, ME Tobar, “Temperature dependence of permittivity and loss tangent of Lithium Tantalate at microwave frequencies”, IEEE Trans on MTT, vol. 52, no. 2, 536-541 2004.

  2. JV Giordano JG Hartnett, J Krupka, Y Kersalè, P-Y Bourgeois, ME Tobar, “Whispering gallery mode technique applied to the measurement of the dielectric properties of Langasite between 4K and 300K,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 51, no. 5, pp. 484-490, 2004.

  3. ME Tobar, GL Hamilton, JG Hartnett, EN Ivanov, D Cros, P Guillon. “The dual-mode frequency locked technique for the characterisation of the temperature coefficient of permittivity of anisotropic materials,” Meas. Sci. Tech., vol. 15, no. 1, pp. 29 – 34, 2004.

  4. JG Hartnett, ME Tobar, J Krupka, “The dependence of the permittivity of sapphire to thermal deformation at cryogenic temperatures,” Meas. Sci. Technol. vol. 15, no.1, pp. 203-210, 2004.

  5. P Wolf, ME Tobar, S Bize, A Clairon, AN Luiten, G Santarelli, “Whispering gallery resonators and tests of Lorentz invariance,” GRG, vol. 36, no. 10, pp. 2351-2373, 2004.

  6. JG Hartnett, PY Bourgeois, JD Anstie, ME Tobar, N Bazin, EN Ivanov, D Cros, V Giordano, Y Kersalé, “High-Q frequency-temperature compensated solid-nitrogen-cooled resonator-oscillators: first results,” Electron. Lett., vol.40, no. 1, pp. 41-42, 2004.

  7. A Fowler, JG Hartnett, ME Tobar, J Krupka, “The microwave characterization of single crystal Lithium and Calcium Fluoride at cryogenic temperatures,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 51, no. 4, pp. 380-386, 2004.

  8. SI Munro, EN Ivanov, ME Tobar, PL Stanwix, CR Locke, “Accurate measurements of very small coupling coefficients of electromagnetic resonators at microwave frequencies.” Meas. Sci. Technol. vol. 15, pp. 881–884, 2004.

  9. T Uchiyama, K Kuroda, M Ohashi, S Miyoki, H Ishitsuka, K Yamamoto, H Hayakawa, K Kasahara, M-K Fujimoto, S Kawamura, R Takahashi, T Yamazaki, K Arai, D Tatsumi, A Ueda, M Fukushima, S Sato, Y Tsunesada, Zong-Hong Zhu, T Shintomi, A Yamamoto, T Suzuki, Y Saito, T Haruyama, N Sato, Y Higashi, T Tomaru, K Tsubono, M Ando, K Numata, Y Aso, K-I Ueda, H Yoneda, K Nakagawa, M Musha, N Mio, S Moriwaki, K Somiya, A Araya, A Takamori, N Kanda, S Telada, H Tagoshi, T Nakamura, M Sasaki, T Tanaka, K-I Ohara, H Takahashi1, S Nagano, O Miyakawa and ME Tobar, “Present status of large-scale cryogenic gravitational wave telescope,” Class. Quantum Grav., vol 21. pp. S1161-S1172, 2004.

  10. ME Tobar, J-M le Floch, D Cros, J Krupka, JD Anstie, JG Hartnett, “Spherical Bragg reflector resonators,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 51, no. 9, pp. 1054-1059, 2004.

  11. S. Bize, P. Laurent, M. Abgrall, H. Marion, I. Maksimovic, L. Cacciapuoti, J. Grünert, C. Vian, F. Pereira dos Santos, P. Rosenbusch, P. Lemonde, G. Santarelli, P. Wolf, A. Clairon, A. Luiten, M. Tobar, C. Salomon. “Advances in atomic fountains," C. R. Physique, vol. 5, no. 8, pp. 829-843, 2004.

  12. CR Locke, ME Tobar, “Measurement on strain induced coefficient of permittivity of sapphire using whispering gallery modes excited in high-Q acoustic sapphire oscillators,” Meas. Sci. Technol., vol. 15, pp 2145-2149, 2004.

  13. P Wolf, S Bize, A Clairon, G Santarelli, ME Tobar, AN Luiten, “Improved test of Lorentz invariance in electrodynamics,” Phys. Rev. D, vol. 70, no. 5, 051902, 2004.

  14. C. Vian, P. Rosenbusch, H. Marion, F. Pereira Dos Santos, M. Abgrall, S. Zhang, Y. Sortais, S. Bize, I. Maksimovic, D. Calonico, J. Grünert, C. Mandache, P. Lemonde, G. Santarelli, Ph. Laurent, A. Clairon, C. Salomon, A. Luiten and M. Tobar, “Horloges en fontaine du BNM-SYRTE : résultats récents,” J. Phys. IV France 119, pp. 287-288, 2004.

2003

  1. ME Tobar, GL Hamilton, EN Ivanov, JG Hartnett, "New method to build a high stability sapphire oscillator from the temperature compensation of the difference frequency between modes of orthogonal polarization", IEEE Trans. UFFC, vol. 50, no. 3, pp. 214-219, 2003.

  2. P Wolf, S Bize, A Clairon, AN Luiten, G Santarelli, ME Tobar, "Tests of Lorentz Invariance using a microwave resonator," Phys. Rev. Lett., vol. 90, no. 6, 060402, 2003.

  3. ME Tobar and JG Hartnett, “Proposal for a new test of the time independence of the fine structure constant, , using orthogonally polarized whispering gallery modes in a single sapphire resonator”, Phys Rev D, vol. 67, 062001, 2003.

  4. JD Anstie, JG Hartnett, ME Tobar, J Winterflood, D Cros, J Krupka, “Characterization of a spherically symmetric fused-silica-loaded cavity microwave resonator,” Meas. Sci. Technol., vol. 14, no. 3, pp. 286-293, 2003.

  5. ME Tobar, CR Locke, EN Ivanov, JG Hartnett, O Piquet, D Cros, " High-Q Factor Frequency-Temperature Compensated Sapphire Bragg Distributed Resonator", Elec. Lett, vol. 39, no. 9, pp. 293-295, 2003.

  6. P. Astone, D Babusci, L Baggio, M Bassan, DG Blair, M Bonaldi, P Bonifazi, D. Busby, P Carelli, M Cerdonio, E. Coccia, L Conti, C. Cosmelli, S Drsquo Antonio, V Fafone, P Falferi, P Fortini, S Frasca, G Giordano, WO Hamilton, IS Heng, EN Ivanov, WW Johnson, A Marini, E Mahjuceli, MP McHugh, R Mezzena, Y Minenkov, I Modena, G Modestino, A Moleti, A Ortolan, GV Pallottino, G Pizzella, GA Prodi, L Quintieri, A Rocchi, E Rocco, F Ronga, F Salemi, G Santostasi, L Taffarello, R Terenzi, ME Tobar, G Torrioli, G Vedovato, A Vinante, M Visco, S Vitale, JP Zendri, “Methods and results of the IGEC search for burst gravitational waves in the years 1997 – 2000,” Phys. Rev. D 68, 022001, 2003.

  7. ME Tobar, D. Cros, JG Hartnett, P. Blondy, P. Guillon, “Simple design rules for optimal design of dielectric temperature compensated sapphire resonators”, IEEE Trans. UFFC, vol. 50, no. 9, pp. 1204-1206, 2003.

  8. K Kuroda, M Ohashi, S Miyoki, T Uchiyama, H Ishitsuka, K Yamamoto, K Kasahara, M-K Fujimoto, S Kawamura, R Takahashi, T Yamazaki, K Arai, D Tatsumi, A Ueda, M Fukushima, S Sato, S Nagano, Y Tsunesada, Z-H Zhu, T Shintomi, A Yamamoto, T Suzuki, Y Saito, T Haruyama, N Sato, Y Higashi, T Tomaru, K Tsubono, M Ando, A Takamori, K Numata, Y Aso, K-I Ueda, H Yoneda, K Nakagawa, M Musha, N Mio, S Moriwaki, K Somiya, A Araya, N Kanda, S Telada, H Tagoshi, T Nakamura, M Sasaki, T Tanaka, K Oohara, H Takahashi, O Miyakawa and ME Tobar, “Current status of large-scale cryogenic gravitational wave telescope,” Class. Quantum Grav. vol. 20, no. 17, pp. S871-S884, 2003.

  9. ME Tobar, JD Anstie, JG Hartnett, "High-Q whispering modes in empty spherical cavity resonators,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 50, no. 11, pp. 1407-1412, 2003.

  10. O. Piquet, A. Laporte, D. Cros, S. Verdeyme, and M. E. Tobar, “High-Q sapphire resonator with Distributed Bragg Reflectors,”Electron. Lett. vol. 39, no. 25, pp. 1791-2, 2003.

2002

  1. EN Ivanov, ME Tobar, “Real time, noise measurements with sensitivity exceeding the standard thermal noise limit”, IEEE Trans. UFFC, vol. 49, no. 8, pp. 1160-1165, 2002.

  2. P Astone, L Baggio, D Busby, M Bassan, D G Blair, M Bonaldi, P Bonifazi, P Carelli, M Cerdonio, E Coccia, L Conti, C Cosmelli, S D'Antonio, V Fafone, P Falferi, P Fortini, S Frasca, W O Hamilton, I S Heng, E N Ivanov, W W Johnson, C R Locke, A Marini, E Mauceli, M P McHugh, R Mezzena, Y Minenkov, I Modena, G Modestino, A Moleti, A Ortolan, G V Pallottino, G Pizzella, G A Prodi, L Quintieri, A Rocchi, E Rocco, F Ronga, F Salemi, G Santostasi, L Taffarello, R Terenzi, M E Tobar, G Vedovato, A Vinante, M Visco, S Vitale and J P Zendri, "Search for gravitational wave bursts by the network of resonant detectors," Class. Quantum Grav., vol. 19, no. 7, pp. 1367-1375, 2002.

  3. CR Locke, ME Tobar, EN Ivanov, “Properties of a monolithic sapphire parametric transducer: prospects of measuring the standard quantum limit”, Class. Quantum Grav., vol. 19, no. 7, pp. 1877-1888, 2002.

  4. K L Ribeiro, E N Ivanov, D G Blair, M E Tobar, O D Aguiar and C Frajuca, "A proposal for improving the noise floor of the gravitational wave antenna Niobè," Class. Quantum Grav., vol. 19, no. 7, pp. 1967-1972, 2002.

  5. JG Hartnett, ME Tobar, EN Ivanov, P Bilski, “Temperature fluctuations in a solid-nitrogen cooled secondary frequency standard”, Cryogenics, vol. 42, pp. 45-48, 2002.

  6. ME Tobar, EN Ivanov, JG Hartnett, D Cros, P Bilski, “Cryogenic dual-mode resonator for a fly-wheel oscillator for a caesium frequency standard,” IEEE Trans. UFFC, vol. 49, no. 10, pp. 1349-1355, 2002.

  7. ME Tobar, JG Hartnett, J Anstie, “Proposal for a new Michelson-Morley experiment using whispering spherical mode resonators”, Physics Letters A, vol 300/1 pp. 33-39, 2002.

  8. ME Tobar, EN Ivanov, CR Locke, JG Hartnett, D Cros, “Improving the frequency stability of microwave oscillators by utilizing the dual-mode sapphire loaded cavity resonator,” Meas. Sci. Technol., vol. 30, no. 8, pp. 1284-1288, 2002.

  9. JG Hartnett, AN Luiten, J Krupka, ME Tobar, P Bilski, "Influence of paramagnetic chromium ions in crystalline YAG at microwave frequencies," J. Phys. D: Appl. Phys., vol. 35, no. 13, pp. 1459-1466, 2002.

  10. ME Tobar, EN Ivanov, CR Locke and JG Hartnett, "Novel difference frequency technique to achieve frequency temperature compensation in a whispering-gallery sapphire resonator-oscillator", IEE Electron. Lett., vol. 38, no. 17, pp. 948-950, 2002.

  11. JG Hartnett, ME Tobar, D Cros, J Krupka, P Guillon, “High Q-factor Bragg-reflection sapphire-loaded-cavity TE01d mode  resonators,” IEEE Trans. UFFC, vol. 49, no. 12, pp. 1628-1634, 2002.

2001

  1. JG Hartnett, ME Tobar, EN Ivanov, “Novel interferometric frequency discriminators for low noise microwave applications”, Trans. UFFC, vol. 48, pp. 743-749, 2001.

  2. J63.   ME Tobar, D Cros, P Blondy, EN Ivanov, “Compact high-Q TE01d sapphire-rutile microwave Bragg resonator”, Trans. UFFC, vol. 48, pp. 821-829, 2001.

  3. ME Tobar, JG Hartnett, G Duchiron, D Cros, EN Ivanov, P Blondy, P Guillon, “Analysis of the rutile-ring method of frequency temperature compensating a high-Q whispering gallery sapphire resonator”, IEEE Trans. UFFC, vol. 48, pp. 812-820, 2001.

  4. JG Hartnett, ME Tobar, J Krupka, “Complex paramagnetic susceptibility in titanium doped sapphire”, J. Phys. D: Applied Physics, vol. 34, pp. 959-967, 2001

  5. ME Tobar, JG Hartnett, EN Ivanov, D Cros, P. Blondy “Whispering gallery method of measuring complex permittivity in highly anisotropic materials: Discovery of a new type of mode in anisotropic dielectric resonators”, IEEE Trans. IM, vol. 50, no. 2, pp. 522 –525, 2001.

2000

  1. JG Hartnett, ME Tobar, EN Ivanov, D Cros“ A high-Q frequency-temperature compensated sapphire/rutile resonator”, Electron. Lett., vol. 36, no. 8, pp. 726-727, 2000.

  2. ME Tobar, “Applications of low temperature microwave techniques to the measurement of gravity waves and quantum measurement of macroscopic systems,” Physica B: Condensed Matter, vol. 280, pp. 520-524, 2000.

  3. ME Tobar, JG Hartnett, EN Ivanov, D Cros, P. Blondy, P Guillon, “Cryogenically cooled sapphire-rutile dielectric resonators for ultrahigh-frequency stable oscillators for terrestrial and space applications,” IEEE Trans. on MTT, vol. 48, no. 7, pp. 1265-1269, 2000.

  4. ME Tobar, EN Ivanov, P Blondy, D Cros, P Guillon “High-Q sapphire whispering gallery travelling wave resonators for oscillator frequency stabilization,” IEEE Trans. on UFFC, vol. 47, no. 2, pp. 421-426, 2000.

  5. ME Tobar, “Fabry-Perot resonator with interferometric read-out for low noise applications,” IEEE Trans. on UFFC, vol. 47, no. 2, pp. 495-501, 2000.

  6. CR Locke, ME Tobar, EN Ivanov, “Monolithic Sapphire Parametric Transducer Operation at Cryogenic Temperatures”, Rev. Sci. Instrum., vol. 71, no. 7, pp. 2737-2741, 2000.

  7. IS Heng, P Bonifazi, DG Blair, ME Tobar and EN Ivanov, “Background Noise Reduction in Gravitational Wave Detectors Through Use of an Amplitude Ratio Filter”, J Gen Rel & Grav, vol. 32, no. 7, pp. 1281-300, 2000.

  8. JG Hartnett, EN Ivanov, ME Tobar, “Microwave secondary frequency standards: stability limits due to intrinsic fluctuations in frequency discriminator”, IEEE MGW lett., vol. 10, no. 8, pp. 328-330, 2000.

  9. GA Prodi, IS Heng, ZA Allen, P Astone, L Baggio, M Bassan, DG Blair, M Bonaldi, P Bonifazi, P Carelli, M Cerdonio, E Coccia, L Conti, C Cosmelli, VC Visconti, S D'Antonio, V Fafone, WW Johnson, P Falferi, P Fortini, S Frasca, WO Hamilton, EN Ivanov, CR Locke, A Marini, V Martinucci, E Mauceli, MP McHugh, R Mezzena, Y Minenkov, I Modena, G Modestino, A Moleti, A Ortolan, GV Pallottino, G Pizzella, E Rocco, F Ronga, F Salemi, G Santostasi, L Taffarello, R Terenzi, ME Tobar, G Vedovato, A Vinante, M Visco, S Vitale, L Votano and JP Zendri, “Initial Operation of the International Gravitational Event Collaboration”, International Journal of Modern Physics D, Vol. 9, No. 3, pp. 237-245, 2000.

  10. J57.     ME Tobar, EN Ivanov, DG Blair, “Parametric transducers for advanced cryogenic resonant-mass gravitational wave detectors,” J Gen Rel & Grav, vol. 32, no. 9, pp. 1799-1821, 2000.

  11. EN Ivanov, JG Hartnett, ME Tobar, “Cryogenic microwave amplifiers for precision measurement,” IEEE Trans. on UFFC, pp. 1273-1274, 2000.

  12. ME Tobar, CR Locke, EN Ivanov, IS Heng, DG Blair, “Accurate calibration technique for a resonant-mass gravitational wave detector,” Rev. Sci. Instrum., vol. 71, no. 11, pp. 4282-4285, 2000.

  13. R Ratheesh, MT Sebastian, P Mohanan, ME Tobar, JG Hartnett, RA Woode, DG Blair, “Microwave characterisation of BaCe2Ti5O15 and Ba5Nb4O15 ceramic dielectric resonators using whispering gallery mode method,” Materials Letters, vol. 45, no. 5, pp. 279-285, 2000.

  14. ZA Allen, P Astone, L Baggio, D Busby, M Bassan, DG Blair, M Bonaldi, P Bonifazi, P Carelli, M Cerdonio, E Coccia, L Conti, C Cosmelli, V Crivelli, Visconti, S D’ Antonio, V Fafone, P Falferi, P Fortini, S Frasca, WO Hamilton, IS Heng, EN Ivanov, WW Johnson, M Kingham, CR Locke, A Marini, V Martinucci, E Mauceli, MP Mc Hugh, R Mezzena, Y Minenkov, I Modena, G Modestino, A Moleti, A Ortolan, GV Pallottino, G Pizzella, GA Prodi, E Rocco, F Ronga, F Salemi, G Santostasi, L Taffarello, R. Terenzi, ME Tobar, G Vedovato, A Vinante, M Visco, S Vitale, L. Votano, JP Zendri, “First search for gravitational wave bursts with a network of detectors,” Phys. Rev. Let., vol. 85, no. 25, pp. 5046-5050, 2000.